Device for removing water from layers of artificial-stone pulp.



A. HERMANN.

DEVICE FOR REMOVING WATER FROM LAYERS OP ARTIFICIAL STONE PULP.

APPLICATION FILED MAY 20,1911.

1,083,279. Patented Jan.6,1914

- UNITED srA'rp s PATENT OFFICE.

ADALBERT HEBMANN, OF VIENNA, AUSTRIA-HUNGARY.

muvrcn ron nnxovmc WATER non LAYERS or 'AB'HFICIAL-STONE PULP.

Specification of Letters Patent.

To all whom. it may concern Be it known that I, ADALBERT HERMAN N, asubject of the Em eror of Austria-Hungary, residing at Vienna, LowerAustria, Empire of Austria-Hungary. have invented certain new and usefulImprovements in De vices for Removing Water from Layers ofArtificial-Stone Pulp, of which the following is a specification.

ing for example of about 300 kg. of dry substances and 4000 l of waterit has been found that the comparatively large content of specificallyheavy dry substances at once causes deposition of the latter, whereb.the water contained in the pulp rises. so t at a removal of the waterdownward as customary in the manufacture of paper or pasteboard isimpossible.

The object of my invention is to provide means for the removal of thewater from the surface of the layer formed upon the metallic cloth. Inthe accompanying drawing Figure 1 represents a side elevation of. thatpartof a machine for the manufacture of plates of artificial stone, inwhich the device for the removal of the water is arranged. Fig. 2represents another mode of execution of this device.

In the drawin a designates part of an endless metallic 0 0th guided overcylinders, the rear one ofwhich is shown and indicated b b.

c is the lever formed by feeding the pulp to the metallic cloth a in asuitable place; during the movement of the metallic cloth a the heavydry substances of the layer-settle, the water being thereby caused torise. b. is an impermeable plate. For carrying off this water there isarranged before the cylinder b an endless ribbon d of felt or the likesucking material moved with the same velocit as the metallic cloth anddirected to war the surface ofthe layer by'the roller efthis ribbonlying on the surface of the layer by reason of its own weight and beinconducted together with the metallic clot and the layer under hightension around the cylinder b. Below the cylinder 6 a further cylinder fis arranged .pressin against cylinder b and around this cylin er j theendless ribbon (1 passes carrying with it the layer for feeding thelatter to a well known w nding up device notre resented in the drawing.From the cylin er 6 the endless metallic cloth returns to the feedingplace.

The operation ofthe device is as follows The water on the surface of thelayer is partly sucked-01f by the ribbon at before the cylinder 1) isreached by the ribbon d and the tension of this ribbon on cylinder bproduces a pressure upon the layer and causes the water still remainingin the layer to be pressed out toward the ribbon d, this latter beingsimultaneousl squeezed, there Patented J an. 6, 1914.

by a continual removal 0 the water being secured. Over the cylinder fthe homog'cn'cous layer nearly freed from water. is conveyed upon theribbon d to the winding up device while the metallic cloth returns tothe feeding place.

To increase the sucking capacity of the ribbon d a second ribbon g offelt like sucking material may be arranged in close'proximity above theribbon d,as shown in Fig. 2, which second ribbon g, moved with the samevelocityas ribbon d, takes upfrom the same part of the pulp wateralready sucked off thereby.

What I claim is:

1. In a device for removing water from layers of an artificial stonepulp, the combination of an endless metallic cloth running over animpermeable plate and a cylinder and carrying the layer in advance ofthe cylinder with a ribbon of a sucking material lyingupon the surfaceof the layer and guided together with the metallic cloth and the layeraround the said cylinder under tension, substantially as described.

2. In a device for removing water from layers of an artificial stonepulp, the com bination of an endless metallic cloth running over animpermeable plate and a cylinder and carrying the layer in advance ofthe cylinder with a ribbon of a suckin material lying upon the surfaceof the fayer and guided together with the metallic cloth and the layeraround the said cylinder under tension and a second cylinder arrangedbelow the first cylinder and ressed againstjit, the

ribbon together with t e layer passing over the said second cylinder,the metallic cloth being separated from the layer, substantially asdescribed.

3. In a devic for removing Water from layers of artificial stone pulpformed on an endless, movable metallic cloth, a ribbon of a suckingmaterial conveyed close to the surface of the layer in combination witha second ribbon of a sucking material conveyed close over and with thesame velocity as the first ribbon and arranged to suck from the latter apart of the Water absorbed by the same from the layer, substantially asdescribed.

4. In a device for removing Water from layers of artificial stone ulp,the combination of an endless meta lic cloth running over an impermeableplate and a cylinder and carrying the layer in advance of the cylinderwith a ribbon of a suckin material lying upon the surface of the "ayerand guided together with the metallic cloth and the layer around thesaid cylinder under tension and a second ribbon of a sucking materialconveyed close over and with the same velocity as the first ribbon andarranged to suck from the latter a part of the tion of an endlessmetallic cloth running over an impermeable plate and a cylinder andcarrying the layer in advance of the cylinder with a ribbon of a suckingmaterial lying upon the surface of the layer and guided together withthe metallic cloth and the layer around the said cylinder under tension,a second cylinder arranged below the first cylinder and pressed againstit, the ribbon together with the layer passing over the said secondcylinder, the metallic cloth being separated from the layer, and asecond ribbon of a sucking material conveyed close over and with thesame velocity as the first ribbon and arranged to suck from the latter apartof the Water absorbed by the same from the layer, substantially asdescribed.

In testimony whereof I afi'ix my signature in presence of two Witnesses.

ADALBERT HERMAN N. Witnesses:

JoHANN Lox, Answer Fneenn.

